Compute Library
 21.02
CLSobel7x7.cpp
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25 
34 
35 using namespace arm_compute;
36 
37 CLSobel7x7::CLSobel7x7(std::shared_ptr<IMemoryManager> memory_manager)
38  : _memory_group(std::move(memory_manager)),
39  _sobel_hor(std::make_unique<CLSobel7x7HorKernel>()),
40  _sobel_vert(std::make_unique<CLSobel7x7VertKernel>()),
41  _border_handler(std::make_unique<CLFillBorderKernel>()),
42  _tmp_x(),
43  _tmp_y()
44 {
45 }
46 
47 CLSobel7x7::~CLSobel7x7() = default;
48 
49 void CLSobel7x7::configure(ICLTensor *input, ICLTensor *output_x, ICLTensor *output_y, BorderMode border_mode, uint8_t constant_border_value)
50 {
51  configure(CLKernelLibrary::get().get_compile_context(), input, output_x, output_y, border_mode, constant_border_value);
52 }
53 
54 void CLSobel7x7::configure(const CLCompileContext &compile_context, ICLTensor *input, ICLTensor *output_x, ICLTensor *output_y, BorderMode border_mode, uint8_t constant_border_value)
55 {
57 
58  const bool run_sobel_x = output_x != nullptr;
59  const bool run_sobel_y = output_y != nullptr;
60 
61  TensorInfo tensor_info(input->info()->tensor_shape(), 1, DataType::S32);
62 
63  if(run_sobel_x && run_sobel_y)
64  {
65  _tmp_x.allocator()->init(tensor_info);
66  _tmp_y.allocator()->init(tensor_info);
67  _memory_group.manage(&_tmp_x);
68  _memory_group.manage(&_tmp_y);
69  _sobel_hor->configure(compile_context, input, &_tmp_x, &_tmp_y, border_mode == BorderMode::UNDEFINED);
70  _sobel_vert->configure(compile_context, &_tmp_x, &_tmp_y, output_x, output_y, border_mode == BorderMode::UNDEFINED);
71  _tmp_x.allocator()->allocate();
72  _tmp_y.allocator()->allocate();
73  }
74  else if(run_sobel_x)
75  {
76  _tmp_x.allocator()->init(tensor_info);
77  _memory_group.manage(&_tmp_x);
78  _sobel_hor->configure(compile_context, input, &_tmp_x, nullptr, border_mode == BorderMode::UNDEFINED);
79  _sobel_vert->configure(compile_context, &_tmp_x, nullptr, output_x, nullptr, border_mode == BorderMode::UNDEFINED);
80  _tmp_x.allocator()->allocate();
81  }
82  else if(run_sobel_y)
83  {
84  _tmp_y.allocator()->init(tensor_info);
85  _memory_group.manage(&_tmp_y);
86  _sobel_hor->configure(compile_context, input, nullptr, &_tmp_y, border_mode == BorderMode::UNDEFINED);
87  _sobel_vert->configure(compile_context, nullptr, &_tmp_y, nullptr, output_y, border_mode == BorderMode::UNDEFINED);
88  _tmp_y.allocator()->allocate();
89  }
90  _border_handler->configure(compile_context, input, _sobel_hor->border_size(), border_mode, PixelValue(constant_border_value));
91 }
92 
94 {
95  CLScheduler::get().enqueue(*_border_handler, false);
96 
97  MemoryGroupResourceScope scope_mg(_memory_group);
98 
99  CLScheduler::get().enqueue(*_sobel_hor, false);
100  CLScheduler::get().enqueue(*_sobel_vert);
101 }
BorderMode
Methods available to handle borders.
Definition: Types.h:265
Class describing the value of a pixel for any image format.
Definition: PixelValue.h:34
static CLScheduler & get()
Access the scheduler singleton.
1 channel, 1 U8 per channel
CLSobel7x7(std::shared_ptr< IMemoryManager > memory_manager=nullptr)
Default Constructor.
Definition: CLSobel7x7.cpp:37
static CLKernelLibrary & get()
Access the KernelLibrary singleton.
CLTensorAllocator * allocator()
Return a pointer to the tensor&#39;s allocator.
Definition: CLTensor.cpp:61
~CLSobel7x7()
Default destructor.
Interface for the kernel to run the vertical pass of 7x7 Sobel filter on a tensor.
void init(const TensorInfo &input, size_t alignment=0)
Initialize a tensor based on the passed TensorInfo.
Copyright (c) 2017-2021 Arm Limited.
1 channel, 1 S32 per channel
void manage(IMemoryManageable *obj) override
Sets a object to be managed by the given memory group.
Definition: MemoryGroup.h:79
Interface to enqueue OpenCL kernels and get/set the OpenCL CommandQueue and ICLTuner.
virtual const TensorShape & tensor_shape() const =0
Size for each dimension of the tensor.
virtual ITensorInfo * info() const =0
Interface to be implemented by the child class to return the tensor&#39;s metadata.
void run() override
Run the kernels contained in the function.
Definition: CLSobel7x7.cpp:93
void enqueue(ICLKernel &kernel, bool flush=true)
Schedule the execution of the passed kernel if possible.
#define ARM_COMPUTE_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(t, c,...)
Definition: Validate.h:790
CLCompileContext class.
void allocate() override
Allocate size specified by TensorInfo of OpenCL memory.
Interface for filling the border of a kernel.
Memory group resources scope handling class.
Definition: IMemoryGroup.h:82
Interface for OpenCL tensor.
Definition: ICLTensor.h:42
Borders are left undefined.
Store the tensor&#39;s metadata.
Definition: TensorInfo.h:45
Interface for the kernel to run the horizontal pass of 7x7 Sobel filter on a tensor.
void configure(ICLTensor *input, ICLTensor *output_x, ICLTensor *output_y, BorderMode border_mode, uint8_t constant_border_value=0)
Initialise the function&#39;s source, destinations and border mode.
Definition: CLSobel7x7.cpp:49